Electric cigarette lighter



' A. E. HUTcHlNsoN 2,557,225

ELECTRIQCIGARETTE LIGHTER 2 SheetsfSheet 1 June 19, '1951 Filed March21,- 1949 June 19, 1951 A. E. HUTcHlNsoN 2,557,225

lELECTRIC CIGARETTE LIGHTERy Filed March 2l, A1949 K 2 Sheets-Sheet 2ATTORN EY Patented June 19, 1951 ELECTRIC CIGARETTE LIGHTER Alton E.Hutchinson, Milwaukee, Wis., assignor to Dowi Products, Inc., acorporation of Wiseonsin Application March 21, 1949, Serial No. 82,683

19 Claims. 1

My invention relates to cigarette lighters, and more particularly to acigarette lighter that utilizes the suction obtained from the intakemanifold of an internal combustion engine to assist in the lightingoperation.

My invention relates to a cigarette lighter of the above mentionedcharacter, in which the ,/'end of a cigarette is contacted with aheating element that is i'lxedly mounted in the lighter and throughwhich air is drawn in a slow moving stream by means of the intakemanifold suction.

In cigarette lighters one of the common difculties that is encounteredis that there is a tarry material formed in the burning of the tobaccoand gums up the heating element, sticking thereto, and which, if astrong draft is eX- erted on the cigarette, is pulled into the suc.

tion passage, such sticky, tarry material being frequently drawn intothe passages to such an extent as to interfere with the operation ofother apparatus that is connected with a suction line to which thecigarette lighter is connected. By providing sufficient air to supportthe combustion and passing this air through the heating element, no suchtarry products of combustion result, but only fine powdery products ofcombustion of an ash-like character are produced. By providing a slowmoving gentle stream of air flowing through the heating element, notobacco or tarry products of combustion are drawn vthrough the heatingelement and only very minlute quantities of iine powdery ash will passfrom the heating element into the suction connection.

This result is obtained by providing a mounting for the heating elementthat is of a tubular character and has an air passage leading to oneside of the heating element, the tubular member being wide open to theheating element at the end thereof at which the heating element islocated, and by providing for the engagement of the cigarette with theopposite side of the heating element to that in which the air passageleading to the suction means is located, the cross sectional area ofsaid passage at its open end being only slightly less than that of thecigarette.

Preferably, a spiral heating element is provided, Which has the turnsthereof spaced so as to provide air passages between said turns, and theair passage leading to the suction connection is arranged co-axially ofsaid spiral heating element, the means for guiding the cigarette intoengagement with the heating ele- 2 ment being so arranged that the endof the cigarette engaging the heating element is also substantiallyco-aXial relative to the air passage and the heating element, andprotrudes a short distance beyond the guiding means when in suchengagement with said heating element.

One of the important purposes of my invention is to eliminate thedistracting effect and re hazard existing in cigarette lighters now inuse. By providing the gentle, slow movement of air through= the heatingelement and thus through the body of the cigarette, which may referredto as a breathing action, and by providing a lighter in which thecigarette is merely inserted in the lighter and the circuit closingmeans actuated by a simple pushing movement to energize the heatingelement, it is unnecessary to hold anything or to watch anything inconnection with the operation of the lighter, and it is thus unnecessaryto remove the eyes from the road, if such a lighter is used on anautomobile, when it is desired to light a cigarette. There is nothingthat has to be detached that is hot, as in the case of portable orremovable heating elements commonly in use, and there is nothing thatcan cause iire because the heating element is always in a xed positionat a location where no damage can be done thereby.

It is a further important purpose of my invention to providethermostatically operated means for breaking the circuit to the heatingelement, so as to de-energize the same when a sulcient interval ofcontact with the end of the cigarette of the energized heating elementhas taken place so that the heating element will not continue tooperate, thus further eliminating any possibility of fire. Furthermorethe cigarette, after having been ignited, will remain in position in thelighter and even if completely forgotten, can do no damage because theholding means for the cigarette, which also comprises part of theswitching means for controlling the heating element, is of such massthat, being cool and of heat conducting material, it will automaticallyextinguish the cigarctte by conducting heat away from the same after thecigarette has been ignited and the heating element has beende-energized.

A further advantage of my invention is that not only is the cigaretteextinguished if completely forgotten, but the cigarette is moved awayfrom the heating element at the same time that the circuit is broken,thus preventing ash from being drawn through the heating element afterignition of the cigarette has been accomplished. However, the heatingelement will be at maximum temperature at the time the cigarette isremoved therefrom, assuring that any ash adhering thereto at the time ofsuch removal wiil be consumed. The movement Vor" the cigarette away fromthe heating element is small, however, and the air being drawn throughthe heating element will, for-a reasonable time, keep the lcigaretteburning, ii" not promptly removed after it has been lighted by theheating element. By providing the thermostatic controlling means for theheating element, uniform lighting of the cigarettes that are ignited bymy improved lighter is assured.

Other objects and advantages of my invention will appear as lthedescription of the drawings proceeds. I desire to have it understood,however, that I do not intend to limit myself to the particular detailsshown or described, except as dened in the claims.

In the drawings:

Fig. 1 is a longitudinal sectional View through my improved lighter, ona greatly enlarged scale,

showing the connection therewith of a source of suction, a portion ofthe suction tube being broken away.

Fig. 2 is a plan view of the heating element, a portion of thebi-metallic controlling element being shown connected therewith.

Fig. 3 is a top plan view of the bi-metallic controlling element, partlybroken away.

Fig. 4 is a transverse sectional view through the mounting frame formounting the lighter in an opening in a panel on a vehicle body.

Fig. 5 is a fragmentary View of said frame, showing one of thecombination holding and stop fingers, and

' Fig. 6 is a fragmentary View taken at right angles to Fig. 5, on agreatly enlarged scale.

Referring in detail to the drawings, my improved cigarette lightercomprises a tubular metallic body portion IEI that is provided with anoutwardly directed ange II at one end thereof and an externally threadedportion I2 extending from adjacent the flange I I a substantial distancelengthwise of the tubular member I9. The tubular member I is providedwith a bore I3 of uni- `form diameter from end to end thereof openingout through the flanged end II to its full size. A iiexible conduit ofrubber or similar electrical insulating material I4 is mounted on theunthreaded portion of the tubular member I and constitutes a suctionconnection, inasmuch as it is mounted on the one arm I of a T I5, whichis in turn mounted between two sections Il and I8 of a suction line thatis connected with a source of suction, such as the intake manifold of aninternal combustion engine and may be connected with suitable apparatusactuated by suction, such as a windshield wiper, for example. Thus theportion I'I'of the suction line may be connected With an intake manifoldand the portion I8 thereof lead to a suitable device actuated 'oroperated by means of the suction in said line. Mounted in the arm or legI5 of the T I3 to which the flexible conduit IA is connected, is asuction controlling and restricting member in the form of a sheet metalplug I9 that has a cylindrical portion that is mounted in the leg I5 ofthe T and which has a transverse wall portion 2| provided with anextremely small opening 22 therein that may be referred to assubstantially a pin opening.

Because of the provision of this iniinitesimal opening-2 2 providingcommunication between the bore I3 of the tubular memberv It through the4 flexible conduit lil and the source of suction, a slow gentle flow ofair in the direction of the arrow will occur in the tubular member Ii]through the opening in the flanged end I I thereof. An insulating washer23 is mounted on the iiange II and has an opening 24 therein of the samesize as the bore I3. Thus there will be an inward slow flow of airthrough the opening 24 in the insulating washer 23. Mounted inengagement with the face of the insulating Washer 23 opposite thatengaging the iiange I I is a heating element 25. The heating element 25is made up of a spirally wound flat strip of metal having highelectrical resistance. The innermost turn 26 of said heating element andseveral adjacent turns overlie the opening 24, and said innermost turnhas a flat strip 28 of said high resistance metal secured thereto byproviding an angular end 29 on said strip 28 engaging flatly with aslightly flattened end 3D on the innermost turn 2S of said heatingelement 25 and welded thereto. The other end of the dat stripl 28 iswelded face to face to the flange I It.l Thus an electrical connectionis provided between the tubular body portion IU and the inner end of theheating element 25.

A conductor 3i is provided, which extends from a suitable terminal, suchas an ignition switch terminal, for example, and which has a terminal 32thereon Vthat is provided with an opening 33 e tting over the threadedportion I2 of the tubular member I0. The nut 3d engages directly withthe terminal 32 so as to provide a good electrical connection betweenthe conducto-r 3l and the tubular member Ii).Y The outer end of theheating element 25 has a attened end portion 35, which is welded to abi-metallic nger 36. The bi-metallic finger 36 extends from a ring-likebase portion 3l, that is also provided with additional bi-metalliclingers 33, said lbase portion having an opening 39 therein thatisconsiderably larger than the external diameter of the tubular memberIl). An insulating washer il is mounted between the fingers 36 and 38and is provided with an opening therein that snugly receives the tubularmember I9. Thus the ring-like base portionv 31 is spaced from themetallic member I0 and the fingers 35 and 38 are insulated from thetubular member I@ so that these are only electrically connected withsaid tubular member I through the heating element 25.

An insulating washer lil is also provided on the tubular member Ill soas to snugly receive the same and nts closely between the fingers 62provided on a mounting bracket, which also has a ring-like base portion43 provided with an opening 43 therein, which is considerably greater indiameter than the threaded portion I2, so that said ring-like member 43is spaced from the tubular member Ill. An insulating washer 45 is alsoprovided between the ring-like -base portion 43 of the mounting bracketand the terminal 32, said washer tting snugly on the threaded portion I2of the members I). It will be seen that if the nut sli is tightened upthe insulating Washers fill, li and t5, and the ring-like portions 3l'and 53, as well as the terminal 32, will be clamped between the flangeIl and the nut 34, and all of the parts will be held in fixed positionon said tubular member so that the ngers 42 will be insulated from thetubular member .I0 and the only electrical connection between thetubular member I Il and the fingers 35 and 38 will be through theheating element 25. The fingers or arms i2 on the mounting bracket areprovided with right angularly extending end portions 4B and withoutwardly struck fingers 41 provided on a reduced end portion 48 .ofsaid arms or fingers 42. Said arms or fingers are adapted to be pushedthrough an opening 49 in a panel 50, such as is ordinarily provided onan automobile for the reception of a lighter or similar apparatus, andupon pushing the arms 42 of said bracket through the opening 49 thestruck out fingers 41, which have a certain amount of resiliency, willsnap back of the panel 50 to hold the lighter in position on the panel.The arms or fingers 42 are also provided with inwardly extending rightangular portions 5|, which constitute stop members or abutments, againstwhich the inner end of a compression coil spring 52 engages.

Mounted on the bracket between the arms 42 for sliding movement on saidarms is a ring-like member 53, which has an outer bell-shaped portion 54that has a iiaring mouth 55 leading to a cylindrical bore 56. Thering-like member has a lateral cylindrical enlargement 51 that slidablyfits between the arms or fingers 42, and which is adapted to engage theinwardly directed stop fingers 5| to limit outward movement of theYring-like member 53. The coil spring 52 is mounted between theoutwardly directed flange 58 provided by the bell portion 54 and thestop fingers 5| and tends to urge the enlargement 51 on thering-likemember 53 into engagement with the stop fingers 5|. The innerend of the bore or passage 56 is provided with an outwardly flaring wall59. Said ring-like member is also provided with an annular transverselycurved ange 6|) and an annular groove El providing an annular hookflange on the inner end of said ringlike member 53. The ring-like membercomprises a movable contact member. As the circuit is completed throughthe metallic frame of the automobile 'through the panel 55 and thebracket having the ears or fingers 42 thereon engaged with said bracket,the metallic ring-like member 53 will be grounded to the frame of thevehicle.

The bi-metallic fingers 36 and 38 are provided with inwardly curvedportions B2 and outwardly directed end portions G3 providing hook-likeformations on said bi-metallic fingers, which are adapted to engage backof the annular flange 60 in the groove 5| when the member 53 is moved tothe dotted line position shown in Fig. 1. With the parts in this latterposition the circuit is completed from the conductor 3| through thetubular member Il), the member 28, the heating element 25, the fingers36 and 38 and the ringlike member 53 to the fra-me of the vehicle, the

heating element 25 being thereupon energized.

In operation, the cigarette 54 is inserted through the bell-shaped mouth55 of the ring-like member 53 into the bore or passage 55 and throughsaid bore or passage until the inner end of the cigarette engages theheating element 25 on the side thereof that is opposite that next to thepassage I3 in the tubular member I0. It will be noted that the majorportion of the end of the cigarette lies opposite the opening leadingfrom said passage. At this time the ring- -like-member 53 is in the fullline position shown in Fig. Next the bell portion 54 of the member 53 isengaged with the fingers to push the member 53 inwardly to the dottedline position, whereupon the hook-like portions on the fingers 36 and 38engage in the groove 6| so that said movable switching element 53 andsaid fingers are interlocked in circuit closing position. The

end of the cigarette remains in contact with (ill the heating elementand a substantial portion thereof extends beyond the inner end of themember 53 constituting holding means therefor. Closing of the circuitcauses the heating element 25 to be energized and the tobacco B5 in theinner end of the cigarette 64 to become ignited. It will be noted thatat this time the cigarette at and adjacent the end engaging the heatingelement is otherwise free and thus air can readily circulate around theend thereof that is being ignited.

After the ignition of the tobacco 65 the heat produced by the heatingelement 25 causes the thermostatic elements comprising the bi-metallicfingers 36 and 38 to move outwardly to the dotted line position shown inFig. 1, whereupon the hook ends of said fingers disengage from thegroove 6| and are moved outwardly far enough that the fiange will camthe fingers 36 and 38 outwardly under the influence of the spring 52 andthe movable switching means formed by the ring-like member 53 will moveout of engagement with said bi-metallic fingers so as toopen lthecircuit through the heating element 25. At

Athe same time, due to the fact that the cigarette 64 fits snugly in thepassage 5E, the inner end of the cigarette will be moved slightly awayfrom the heating element 25, the heating element being at its maximumtemperature at the time separation of the cigarette therefrom takesplace.

It will be noted that the fiexible suction tube Irl is of considerablelength and that the plug I9 that has the pin hole 22 therein is locatedat a considerable distance from the tubular member I9. Due to therestriction of the flow provided by the small opening 22, there will beonly a gentle flow or passage of air through the heating element 2S atthe central portion thereof, which is engaged with the end of thecigarette 64, into the tubular member i9 at all times. Thus there willbe a slow flow of air through the heating element while it is energizedand the cigarette is engaged therewith. This slow flow of air willcontinue through the heating element and thus around the ignited part ofthe cigarette after the heating element has been cle-energized to thuskeep the tobacco in the end of the cigarette burning where this endprotrudes beyond the inner end of the ring-like member v53, and in factuntil the cigarette burns to the point where it is consumed to such anextent that its ignited portion reaches the junction of the flaring part59 of the passage 5S with the portion of uniform bore of said passage.

After the cigarette has been consumed to that extent, then air will nolonger iiow around the end thereof and there is insuiiicient suction topull any appreciable amount of air through the tobacco in the cigarettefrom the outer end of the cigarette, and inasmuch as the ring-likemember 53 is of heat conducting material and of considerable mass, theheat will be conducted away from the cigarette sufficiently to terminatethe ignition thereof.

Accordingly all that is necessary to light a cigarette lby means of myimproved lighter is to push the cigarette into the lighter intoengagement with the heating element, push in on the bell-shaped portion54 of the ring 53 and leave the cigarette in position until after themember 54 springs outwardly, due to release of the ringlilze member fromthe lai-metallic holding fingers. The cigarette is then ignited and eachcigarette will be uniformly ignited, because Vthe heating element willbe energized to the same extent each -that the portion of the cigarettethat is snugly fitted in the bore 56 begins to burn, the cigarette willbe extinguished by conduction of heat therefrom through the member53.and lack of air for supporting the combustion.

Furthermore, due to the fact that the flow of air through the passage I3is very slow and gentle, none of the tarry products of combustion willbe drawn through the heating element, but these will be consumed andwill turn into a fine powdery ash, some of which may pass into thetubular member I@ in the air stream flowing through said member andeveninto the suction connection I4, but only infinitesimal amountsthereof collect in the passages and are dry and powdery and so finelydivided that these particles will not interfere in any manner with anyof the apparatus connected with the suction connection I8 and also willnot clog the pin hole opening 22 in the plug 28. Preferably, to makesure that no ne particles of ash will clog said pinhole opening, afilter member 'it may be placed in the flexible' tube I4 between thetubular member I and the plug I9.

What I claim is:

1. In a cigarette lighter, a stationary heating element having openingstherethrough, a circuit for energizing said heating element, acombination switching and cigarette guiding member having means forholding a cigarette in cooperative relation with one side of saidheating element, said member being mounted for limited movement towardand away from said heating element parallel to the length of saidcigarette, resilient means urging said member in a direction away fromsaid heating element, means for holding said member against suchmovement comprising circuit closing means including thermostatic meansheated by said heating element to release said holding means and openthe circuit to said heating element, said resilient means moving saidmember upon release of said holding means to move said cigarette endwisein a direction away from said heating element, and means for creating acontinuous gentle draft of air from the aforementioned side of saidheating element to the opposite side thereof through an area of saidheating element approaching that of the end of said cigaretteirrespective of the position of said switching means.

2. In a cigarette lighter, a stationary heating element having openingstherethrough, a circuit for energizing said heating element, acombination switching and cigarette guiding member having means forholding a cigarette in cooperative relation with said heating element,said member being mounted for limited movement toward and away from saidheating element parallel to the length of said cigarette, resilientmeans urging said member in a direction away from said heating element,means for holding said member against such movement comprising circuitclosing means including thermostatic means heated by said heatingelement to release said holding means and open the circuit to saidheating element, said resilient means moving said member upon release ofsaid holding means to move said cigarette endwise in a direction awayfrom said heating element, and means for creating a continuous gentledraft of air through an area of said heating element approaching that ofthe end of said cigarette irrespective of the position of said switchingmeans, comprising a long tubular member having a wide open passagetherethrough from end to end thereof of a diameter approaching that ofthe cigarette, said heating element overlying one end thereof and theopenings through said heating element providing air passages leadinginto said end.

3. In a cigarette lighter, a stationary heating element having openingstherethrough, a circuit for energizing said heating element,`acombination switching and cigarette guiding member hav-- .ng means forholding a cigarettein cooperative relation with said heating element,said member being mounted for limited movement toward and away from saidheating element parallel to the length of said cigarette, resilientmeans urging said member in a direction away from said heating element,means for holding said member against such movement comprising circuitclosing means including thermostatic means heatedV by said heatingelement to release said holding means and open the circuit, toV saidheating element, said resilient means moving said member upon release ofsaid holding means to move saidV cigarette endwise in a direction awayfrom ysaid heating element, and means for creating a continuous gentledraft of `air through an area of said heating element approaching thatof the end of said cigarette irrespective of the position of saidswitching means, comprising a long tubular member having a wide openpassage therethrough from end to end thereof of a diam-- eterapproaching that of the cigarette, said heating element overlying oneend thereof and the openings through said heating element providing airpassages leadingintc said end, and a suction line connected with theother end of said tubular member having iiow restricting means therein.

4. In a cigarette lighter, a stationary heating element having openingstherethrough, a circuit for energizing said heating element, acombination switching and cigarette guiding member having means forholding a cigarette in cooperative relation with said heating element,said member being mounted for limited movement toward and away from saidheating element parallel to the length of said cigarette, resilientmeans urging said member in a direction away from said heating element,means for holding said member against such movement comprising circuitclosing means including thermostatic means heated by said heatingelement to release said holding means and open the circuit to saidheating element, said resilient means moving said member upon release ofsaid holding means to move said cigarette endwise in a direction awayfrom said heating element, and means for creating a continuous gentledraft of air through an area of said heating element approaching thatVof the end of said cigarette irrespective of the position of saidswitching means, comprising a long tubular member having a wide openpassage therethrough from end to end thereof of a diameter approachingthat of the cigarette, said heating element overlying one end thereofand the openings through said heating element providing air passagesleading into said end, a suction line connected with the other end ofsaid tubular member having flow restricting means therein,

9 and a filter between said tubular member and said flow restrictingmeans.

5. In a cigarette lighter, a stationary heating element having opposedfaces, means for energizing said heating element for a limited interval,means for creating a continuous uniform slow flow of air through and incontact with said heating element from one face thereof to the oppositeface thereof irrespective of the energization thereof comprising an airconduit having an open end adjacent and facing one face of said heatingelement, and means for holding the end of a cigarette in ignitingrelation to said heating element, said holding means being adjacent butspaced from said end of said cigarette.

6. In a cigarette lighter, a stationary heating element having opposedfaces, means for energizing said heating element for a limited intervai,means for creating a continuous uniform restricted ilow of air throughand in contact with said heating element from one face thereof to theopposite face thereof irrespective of the energization thereofcomprising an air conduit having an open end adjacent and facing oneface of said heating element, and means for holding the end of acigarette in igniting relation to said heating element only duringenergization of said heating element.

'7. In a cigarette lighter, a fiat faced spiral stationary heatingelement, means for energizing said heating element for a limitedinterval, means for creating a continuous draft through and in contactwith a large area of said heating element from one face thereof to theopposite face thereof irrespective of the energization thereofcomprising an air conduit having an open end adjacent and facing oneface of said heating element, and means movable toward and away fromsaid heating element for holding the end of a cigarette in ignitingrelation to said heating element opposite said area.

8. In a cigarette lighter, a stationary heating element having opposedfaces, means for energizing said heating element for a limited interval,the mounting for said heating element having an air passagetherethrough, said passage having an open end adjacent and facing oneside of said heating element, means for holding the end of a cigarettein igniting relation to the other side of said heatingl element, saidmeans being adjacent but spaced from said end of said cigarette, andmeans for producing a continuous unidirectional iiow of air through saidheating element and passage irrespective of the energization of saidheating element.

9. fIn a cigarette lighter, a stationary tubular heating elementmounting having an open ended air passage therethrough, a stationaryspiral heating element overlying the open end of said passage in fixedposition on said mounting, means movable axially of said mounting towardand away from the heating element for holding the end of a cigarette incooperative relation with said heating element in alignment with saidpassage, means for energizing said heating element for an interval, andmeans for creating a yuniform flow of air into the open end ofV saidpassage through said heating element both when saidl element isenergized and not energized.

10. In a cigarette lighter, a stationary heating element, a circuit forenergizing said heating element, means for creating a draft through saidheating element, releasable means for holding the end of a cigarette incooperative relation with said heating element engaging said cigaretteat a point spaced from both ends thereof, means,v

for closing the circuit to said heating element, means for moving saidcigarette endwise of itself away from said heating element, andthermostatic means heated by said heating element forl opening saidcircuit and releasing said holding.

means to permit said cigarette moving means toV move said cigarette awayfrom said heating ele ment.

1l. In a cigarette lighter, a stationary heating element, a circuit forenergizing said heating element, a stationary mounting for said heatingelement having an air passage therethrough leading to one side of saidheating element,-

releasable means for holding the end of a .cigarette in cooperativerelation with the other side of said heating element, means for closingthe..

circuit to said heating element, means for movsaid cigarette endwse ofitself away fromV said heating element, and thermostatic means.

heated by said heating element for opening said circuit and releasingsaid holding means to per- -mit said cigarette moving means to move saidcigarette away from said heating element.

l2. In a cigarette lighter, a stationary heating element mounting havingan air passage therethrough, a stationary spiral heating elementoverlying the open end of said passage on said.v mounting, a circuit forenergizing said heating element, means for creating a flow of air intoment from said passage, means for closing the.

circuit to said heating element, means for moving said cigarette endwiseof itself away from said heating element, and thermostatic means heatedby said heating element for opening said circuit and releasing saidholding means to permit said cigarette moving means to move saidcigarette away from said heating element.

13. In a cigarette lighter, a tubular member wide open at both endsthereof, a constantly open suction line means connected with one end ofsaid tubular member for creating a steady uniform flow of airtherethrough, flow restricting means of fixed aperture in said suctionline spaced from said tubular member, a heating element, and means formounting said heating element over the other open end of said tubularmember.

14. In a cigarette lighter, a tubular member wide open at both endsthereof, a constantly open suction line means connected with one endof..

said tubular member for creating a steady uniform flow of airtherethrough, flow restricting means of fixed aperture in said suctionline spaced from said tubular member, a heating element having spacedturns, means for mounting said heating element over 'the other open endof said tubular member, the only opening into said other end of saidtubular member being. between the turns of said heating element, one endof said heating element being connected with said tubular member, andmeans for connecting a conductor with said tubular member.

15. In a cigarette lighter, a tubular member wide open at both endsthereof, a constantly open suction line means connected with one end ofsaid tubular member for creating a steady uniform flow of airtherethrough, iiow restricting means of fixed aperture in said suctionline spaced from said tubular member, a iiat spiral heating element,means for mounting said heating element over and adjacent the other openend of said tubular member in axially spaced relation thereto, the onlyopening into said other end of said tubular member being through saidheating element, one end of said heating element being connected withsaid tubular member, a circuit for energizing said heating elementincluding means for connecting a conductor with 'said tubular member,and means connected with the other end of said heating element forcompleting the circuit through the same.

16. In a cigarette lighter, a tubular member having a uniformunrestricted passage therethrough from end to end thereof and wide openat both ends thereof, a constantly open suction line connected with oneend or said'tubular member and continuously open thereto, flowrestricting means of xed aperture in said suction line spaced from saidtubular member, a spiral heating element, means for mounting saidheating element over the other open end of said tubular member in xedposition, one end of said heating element being connected with saidtubular member, a circuit for energizing said heating element-includingmeans for connecting a conductor with said tubular member, and meansconnected with the other end of said heating element for completing thecircuit through the same, comprising a movable switching element,thermostatic switching means interlocking therewith to close the circuitthrough said switching element, and means urging said movable ele- CIIment away from said thermostatic means and heating element, said movableelement including means engaging said cigarette to hold said cigarettein igniting relation to said heating element only said thermostaticmeans is interloclred with said movable element.

17. In a cigarette lighter, a tubular member having a uniformVunrestricted passage therethrough from end to end thereof and wide openat both ends thereof, a constantly open suction line connected with oneend of said tubular member and continuously open thereto, ilowrestricting means of fixed aperture in said suction line spaced fromsaid tubular member, a spiral heating element, stationary means formounting said heating element over the other open end of said tubularmember in xed position, one end of said heating element being connectedwith said tubular member, a circuit for energizing said heating elementincluding means for connecting a conductor with said tubular member,means connected with Vthe other end of said heating element forcompleting the circuit through the same, comprising a movable switchingelement, bi-metallic fingers interlocking therewith, one o-f saidfingers comprising switching means cooperating with said movableswitching element to close the circuit through said switching element,and means urging said movable element away from said thermostatic meansand heating element, and cigarette holdingV means movable with saidswitching means in a direction away from said heating Velement uponrelease of said switching element by said fingers.

Y 18. In a cigarette lighter, a tubular member having a uniformunrestricted passage therethrough from end to end thereof and wide openat both ends thereof, a constantly open suction line connected with oneend of said tubular member and continuously open thereto, flowrestricting means of fixed aperture in said suction line spaced fromsaid tubular member, a spiral heating element, stationary means formounting said heating element over the other open end of said tubularmember in fixed position, one end of said heating element beingconnected with'said tubular member, a circuit for energizingsaid heatingelement including means for connecting a conductor with said tubularmember, means connected with the Vother end of said heating element forcompleting the circuit through the same, comprising a movable switchingelement, bi-metallic fingers interlocking therewith, one of said fingersbeing connected with the other end of said heating element andcooperating with said movable element to close the circuit through saidswitching element, and means urging said movable element away from saidthermostatic means and heating element, and cigarette hold-k element,and switching means in said circuit controlling operation of saidheating element, comprising va movable switching element` having meansfor guiding a cigarette endwise toward said heating element and holdingsaid cigarette in cooperative relation therewith, thermostatic switchingmeans interlocking'with said switching element to close the circuitthrough said switching element, guiding means for said movable switchingelement having stop nngers thereon, and means urging said movableelement away from said thermostatic means and into engagement with saidstop fingers, said last mentioned means Ybeing mounted between said stopngers and an enlargement on said element, said thermostatio means beingmounted to move out of c interlocking relation with said element uponpredetermined heating thereof by said heating element.

ALTON E. HUTCHINSON.

- REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number yName Date 1,373,006 Jay Mar. 29, 19211,609,042 Trapet Nov. 30, 1926 1,711,936 Girtanner May 7, 1929 1,932,193Spiselman et al. Oct. 24, 1933 1,959,093 DavisV May 15, 1934 1,984,070La Vercombe Dec. 11, 1934 1,989,064 Schiavulli Jan. 22, 1935 2,002,492Dess May 28, A1935 2,010,675 Lewis Aug. 6, 1935 2,028,787 Lane Jan. 28,1936 2,108,376 Copeland Feb. 15, 1938` 2,244,269 Springborn June 3,19412,340,773 Shively Feb. l, 1944, 2,381,726 Davis Aug. 7, 1945 Certificateof Correction Patent No. 2,557,225 June 19, 1951 ALTON E. HUTGHINSON Itis hereby eertied that error appears in the printed specioation of *theabove numbered patent requiring correction as :follows:

Column 11, line 38, after only insert when;

and that the said Letters Patent should be read as corrected above, sothat the same may conform to the record of the case in the Patent Oiice.

Signed and sealed this 2nd day of October, A. D. 1951.

[SEAL] THOMAS F. MURPHY,

` Assistant Oommz'ssz'oner of Patents.

It s hereby certified that error appears in the printed specification ofCertificate of Correction Patent No. 2,557,225 June 19, 1951 ALTON E.HUTCHINSON VYthe above numbered patent requiring correction as follows:*t Column 11,1ne 38, after only insert when;

and that the Said Letters Patent should be read as corrected above, sothat n the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 2nd day of October, A. D. 1951.

[SEAL] THOMAS F. MURPHY,

` Assistant ommz'ssz'oner of Patents.

